And I would want to pay between $10 and $25 (plus shipping) for a plumbing piece that would cost me how much in my local hardware store? It would help you to sell your work if you can explain the benefits of buying this piece. Is this a unique solution to a problem that you couldn't resolve yourself with an off-the-shelf product? Not everyone reading your post will have the knowledge of plumbing products that you seem to have yourself...